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Commit 909486a7 authored by Jack Palevich's avatar Jack Palevich
Browse files

Print OpenGL version and extension information. 

Something happened to the line endings, adding
a blank line after most lines of text. I
repaired the damage, but in the process some
blank lines have been added / removed.
parent 4405c6a5

opengl/tests/gl_basic/gl_basic.cpp

+152 −144
Original line number Diff line number Diff line 
// Simple OpenGL ES 1.x application showing how to initialize and draw something.



#include <EGL/egl.h>



#include <GLES/gl.h>

#include <GLES/glext.h>
@@ -8,6 +9,7 @@ 
#include <ui/EGLUtils.h>



#include <stdio.h>



#include <stdlib.h>

#include <math.h>
@@ -28,6 +30,11 @@ void render(); 
void create_texture(void);

int readTimer(void);



static void printGLString(const char *name, GLenum s) {

    const char *v = (const char *) glGetString(s);

    fprintf(stderr, "GL %s = %s\n", name, v);

}



static void gluLookAt(float eyeX, float eyeY, float eyeZ,

        float centerX, float centerY, float centerZ, float upX, float upY,

        float upZ)
@@ -87,7 +94,6 @@ static void gluLookAt(float eyeX, float eyeY, float eyeZ, 
    glTranslatef(-eyeX, -eyeY, -eyeZ);

}





void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {



#define X(VAL) {VAL, #VAL}
@@ -188,27 +194,19 @@ int main(int argc, char **argv) 
{

    int q;

    int start, end;



    printf("Initializing EGL...\n");



    if(!init_gl_surface())

    {

        printf("GL initialisation failed - exiting\n");

        return 0;

    }



    init_scene();



    create_texture();



    printf("Running...\n");



    while(true) {

        render();

    }



    free_gl_surface();



    return 0;

}
@@ -238,6 +236,7 @@ int init_gl_surface(void) 
        printf("printEGLConfigurations failed.\n");

        return 0;

    }



    EGLNativeWindowType window = android_createDisplaySurface();

    EGLUtils::selectConfigForNativeWindow(eglDisplay, attrib, window, &myConfig);
@@ -260,6 +259,21 @@ int init_gl_surface(void) 
        return 0;

    }

    

    int w, h;



    eglQuerySurface(eglDisplay, eglSurface, EGL_WIDTH, &w);

    checkEglError("eglQuerySurface");

    eglQuerySurface(eglDisplay, eglSurface, EGL_HEIGHT, &h);

    checkEglError("eglQuerySurface");

    GLint dim = w < h ? w : h;

    

    fprintf(stderr, "Window dimensions: %d x %d\n", w, h);



    printGLString("Version", GL_VERSION);

    printGLString("Vendor", GL_VENDOR);

    printGLString("Renderer", GL_RENDERER);

    printGLString("Extensions", GL_EXTENSIONS);



    return 1;

}
@@ -280,21 +294,17 @@ void init_scene(void) 
{

    glDisable(GL_DITHER);

    glEnable(GL_CULL_FACE);



    float ratio = 320.0f / 480.0f;

    glViewport(0, 0, 320, 480);



    glMatrixMode(GL_PROJECTION);

    glLoadIdentity();

    glFrustumf(-ratio, ratio, -1, 1, 1, 10);



    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity();

    gluLookAt(

            0, 0, 3,  // eye

            0, 0, 0,  // center

            0, 1, 0); // up



    glEnable(GL_TEXTURE_2D);

    glEnableClientState(GL_VERTEX_ARRAY);

    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
@@ -315,6 +325,7 @@ void create_texture(void) 
            on, off, on, off, on, off, on, off,

            off, on, off, on, off, on, off, on,

    };



    glGenTextures(1, &texture);

    glBindTexture(GL_TEXTURE_2D, texture);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
@@ -346,12 +357,9 @@ void render() 


    glVertexPointer(3, GL_FLOAT, 0, vertices);

    glTexCoordPointer(2, GL_FIXED, 0, texCoords);



    glClearColor(1.0, 1.0, 1.0, 1.0);



    int nelem = sizeof(indices)/sizeof(indices[0]);

    glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

    glDrawElements(GL_TRIANGLES, nelem, GL_UNSIGNED_SHORT, indices);

    eglSwapBuffers(eglDisplay, eglSurface);

}